1 The lac operon consists of three structural genes, and a promoter, a terminator, regulator, and an operator. 2  The three structural genes are: lacZ, lacY, and lacA.n this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA.
NEC Corporation (æ¥æ¬é»æ°æ ªå¼ä¼ç¤¾, Nippon Denki Kabushiki Gaisha) is a Japanese multinational provider of information technology (IT) services and products, headquartered in Minato, Tokyo, Japan.
By ANDREW POLLACK. Akio Morita, the co-founder of the Sony Corporation who personified Japan's rise from postwar rubble to industrial riches and became the unofficial ambassador of its business community to the world, died on Sunday in Tokyo. He was 78. Mr. Morita died of pneumonia, according to Sony.